I'm just not sure how this works. AFAICT there's four networks in Canada. Why would they onsell their network, then have to acquire the company to stop the competition? Why not just not onsell it in the first place?

Maybe there's some regulation saying they have to onsell it?

Just curious because it seems a bit similar in Australia.

I was with Vodafone then discovered a much better deal through Kogan which uses the Vodafone network. I asked Vodafone to match the deal to keep me as a customer, and they couldn't! They wanted me to pay something like 30% more for the same network/data usage. I told them thanks but no thanks.

e.g. Public Mobile would have a small network that operated only in cities and metropolitan areas. Unlimited data, unlimited talk time over the entire Canada and unlimited text messages. This cost me around $35/month. Telus purchased them and changed it down to 1gb of data and incrased the price to around $40-45. They killed all the Public Mobile physical stores and made it so that getting support was a pain.

A few month ago every Public Mobile clients received a SMS. The SMS was a promotion to switch from Public Mobile to Koodo. We would get the same deal we had right now (or better price), a new cellphone and $150 in Koodo store credits to get goodies. Everyone switched over. Right now I'm on a $50/month plan with Koodo that is worst than the $35/month PublicMobile could give me.

Now nobody offers unlimited data or Canada wide data for $35.

(Disclaimer: I have a bad memory for dates and prices. This should however describe the situation correctly enough.)

But how could Public Mobile afford to offer such a good deal?

Presumably they were onselling another companies network, why would that company sell their own network so cheap?